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Finding the Fourth Proportional to 87,088.50, 130,639.50 and 27,109.44

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Solution

The fourth proportional to 87,088.50, 130,639.50 and 27,109.44 is: 40,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,088.50 : 130,639.50 = 27,109.44 : x
  2. Step 2: Convert to fraction form
    87,088.50/130,639.50 = 27,109.44/x
  3. Step 3: Cross multiply
    87,088.50x = 130,639.50 × 27,109.44
  4. Step 4: Simplify right side
    87,088.50x = 3,541,563,686.88
  5. Step 5: Solve for x
    x = 3,541,563,686.88/87,088.50
  6. Step 6: Final answer
    x = 40,666.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.